I upgraded my David Tubb’s Bearing Surface Comparator by replacing the Dial Indicator with a Digital Indicator. I went to my local Harbor Freight Store and purchased a Cen-Tech digital indicator with my 20% discount coupon.
The digital indicator makes the whole bullet measuring process seem easier and faster. The digital indicator has enough travel that allowed me to zero the indicator at the bottom of its stroke and still read the bullets bearing surface lengths. This will also allow me to compare different batches of bullets down the road.
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Bearing Surface Comparator
